domestic: reconstruction plan calls for replacement of all analog circuits with digital and enlarging the network; a backup will be included in the plan for the main trunk international: digital international service is provided through the main switch in Zagreb; Croatia participates in the Trans-Asia-Europe (TEL) fiber-optic project which consists of two fiber-optic trunk connections with Slovenia and a fiber-optic trunk line from Rijeka to Split and Dubrovnik; Croatia is also investing in ADRIA 1, a joint fiber-optic project with Germany, Albania, and Greece (2000)